He needs to be given the all clear from the doctor that did his vasectomy. As other poster said, he needs a semen sample that shows no live sperm. Only then can you be certain. And even then, there is about. 1/1000 chance of a couple getting pregnant each year after the man has had a vasectomy. So never ignore pregnancy symptoms if your feel them!

My husband had a vasectomy. The urologist told him that it takes about 20 ejaculates before they get a clean sample. In my huisbands case it took much more than that. He had to give 3 samples after he hit the 20 mark before it came back negative for sperm. Has your boyfriend had his semen tested since the procedure? Once he gets a clear sample, you are good to go! Unless he wants to use a condom to protect himself from STDs.

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